Trolley-wheel



(No Modgl.)

C; A. LIEB.

TROLLEY WHEEL. Y

No. 522,845. Patented July 10, 1894.

UNITED STATES PATENT OFFICE.

CHARLES A. LIEB, OF NEW YORK, N. Y., ASSIGNOR TO THE GENERAL ELECTRICCOMPANY, OF BOSTON, MASSACHUSETTS.

TROLLEY-WHEEL.

SPECIFICATION forming part of Letters Patent No. 522,845, dated July 10,1894.

Application filed April 12, 1894. Serial N0- 507|245 (No model.)

To aZZ whom it may concern:

Be it known that I, CHARLES A. LIEB, a citizen of theUnited States,residing at New York, county` of New York, and State of New York, haveinvented certain new and useful Improvements in Trolley-Wheels, of whichthe following is a specification.

My invention relates to trolleys for electric railways, and has for itsobject to improve their construction by providing a more durable andcheaper construction for the trolley wheel which is at the same timelighter in weight. To this end I employ a copper or bronze core for thewheel and provide it with thin sheet steel flanges properly securedthereto, and these flanges I provide with radial corrugations extendingnearly to their rims, so that when` the bearing surface of the flange isworn, the corrugations will still serve to support the rim of the flangeso that it will not drop off and permit the trolley to run off the wire.

In the accompanying drawings which show an embodiment of my invention,like letters refer to like parts throughout; and therein- Figure 1 is aside elevation, and Fig. 2 a section, of my improved trolley Wheel.

A, A are steel fianges having a turned or spun lip A', which serves tostiffen them; these flanges are secured to a body or core B, having aconcave surface adapted to make contact with the trolley wire. Theflanges A are held in engagement with this core or central body by lipsB formed upon the core, as shown in dotted lines at B2, which lips areafterward turned or spun down over the edge of the flange.

C is a sleeve of iron havinga central openingD forming a bearing for thetrolleyin the usual way. This central opening may be provided With abushing of anti-friction metal of any kind.

E, E, dac., are the radial corrugations to which I have referred in mystatement of invention, of which I have illustrated six, but any greateror less number may be provided, as may be desired, and the object of theinven tion will be attained.

The improved construction indicated provides a light trolley wheel whichcan be cheaply made, by which a considerable saving in the amount ofcopper or bronze is effected, and which is more durable than theordinary wheel, inasmuch as the flashing when the trolley wheel strikesthe wire is confined to the steel surfaces; as iron or steel has agreater heat constant than bronze, and a higher melting point, it is notso apt to be burned by the spark, and the durability of the wheel isthereby increased.

WhatIclairn as new, and desire to secure by Letters Patent of the UnitedStates, is

1. As a new article of manufacture, a trolley-wheel having a centralcore of copper or bronze and provided with steel Hanges having stiffenededges.

2. As a new article of manufacture, a trolley-wheel having a centralcore of good conducting metal, as copper or bronze, and steel angessecured to such core, such'steel flanges being provided with radialcorrugations.

3. As a new article of manufacture, a trolley wheel provided withflanges having corrugations extending part way from the hub of thetrolley wheel to the circumferences of the flanges.

4. As a new article of manufacture, a trolley-wheel comprising a centralcore of good conducting metal, as copper or bronze, and steel flangeshaving stiffened edges and secured in place by a lip turned over fromthe core.

5. As a new article of manufacture, a trolley-wheel comprisinga core ofgood conducting metal, as copper or bronze, and sheet metal flangeshaving stiffened edges and vsecured in place by a lip turned over fromthe core, such wheel provided with a central bushing around the bearing,substantially as set out herein.

In witness whereof I have hereunto set my hand this 10th day of April,1894.

CHARLES A. LIEB.

Witnesses:

WM. H. CAPET., Tnos. F. CoNREY.

